Title: Plugin Activation Error with solr 5.1.0 Last modified: August 24, 2016 --- # Plugin Activation Error with solr 5.1.0 * Resolved [ricardowordpress](https://wordpress.org/support/users/ricardowordpress/) * (@ricardowordpress) * [11 years ago](https://wordpress.org/support/topic/plugin-activation-error-with-solr-510/) * I’m trying to activate the plugin and I get this error: * solr 5.1.0 WordPress 4.2.1 (NO war file deployment) * Solr HTTP error: OK (500) {“error”:{“msg”:”Ping query caused exception: Bad contentType for search handler :text/xml; charset=UTF-8 request={q=solrpingquery&json.nl= flat&omitHeader=true&wt=json&echoParams=all&distrib=false}”,”trace”:”org.apache. solr.common.SolrException: Ping query caused exception: Bad contentType for search handler :text/xml; charset=UTF-8 request= * Tests: * [http://192.168.3.18:8984/solr/wordpress/admin/ping?action=status](http://192.168.3.18:8984/solr/wordpress/admin/ping?action=status) 0 0 status all solrpingquery false enabled * Test with Solarium examples * Solarium library version: 3.2.0 – {“endpoint”:{“localhost”:{“host”:”192.168.3.18″,” port”:8984,”path”:”\/solr\/wordpress”}}} {} * Fatal error: Uncaught exception ‘Solarium\Exception\HttpException’ with message‘ Solr HTTP error: OK (500) {“error”:{“msg”:”Ping query caused exception: Bad contentType for search handler :text/xml; charset=UTF-8 request= * Directory rights: drwxr-xr-x 7 www-data www-data 4096 May 4 12:56 . drwxr-x— 10 www-data www-data 4096 May 4 12:56 .. -rw-r–r– 1 www-data www-data 11952 Apr 25 20:34 ajax_solr_services.php -rw-r–r– 1 www-data www-data 2559 Apr 25 20:34 autocomplete.php drwxr-xr-x 3 www-data www-data 4096 May 4 12:56 classes -rw- r–r– 1 www-data www-data 26716 May 4 14:34 class-wp-solr.php -rw-r–r– 1 www-data www-data 55 Apr 25 20:34 composer.json -rw-r–r– 1 www-data www-data 4510 Apr 25 20:34 composer.lock -rw-r–r– 1 www-data www-data 1048648 Apr 25 20:34 composer. phar drwxr-xr-x 2 www-data www-data 4096 May 4 12:56 css -rw-r–r– 1 www-data www-data 37134 Apr 25 20:34 dashboard_settings.php drwxr-xr-x 2 www-data www- data 4096 May 4 12:56 images drwxr-xr-x 2 www-data www-data 4096 May 4 12:56 js -rw-r–r– 1 www-data www-data 8337 Apr 25 20:34 readme.txt -rw-r–r– 1 www-data www-data 7792 Apr 25 20:34 securecookie.php -rw-r–r– 1 www-data www-data 10151 Apr 25 20:34 solr_services.php drwxr-xr-x 5 www-data www-data 4096 May 4 12:56 vendor -rw-r–r– 1 www-data www-data 6716 Apr 25 20:34 wpsolr_search_engine.php * ———————————————————————– Second test to solr 4.9 instance: * Working OK. * [https://wordpress.org/plugins/wpsolr-search-engine/](https://wordpress.org/plugins/wpsolr-search-engine/) Viewing 5 replies - 1 through 5 (of 5 total) * Plugin Author [WPSOLR](https://wordpress.org/support/users/wpsolr/) * (@wpsolr) * [11 years ago](https://wordpress.org/support/topic/plugin-activation-error-with-solr-510/#post-6091832) * Did you try with Solr 5.0, just to be sure it is not related to your install ? * Can you confirm that you used the Solr 5.0 config files on wpsolr.com ? * Else, there is an issue that looks like yours: [https://github.com/solariumphp/solarium/issues/326](https://github.com/solariumphp/solarium/issues/326) * (I’ve already patched solarium in WPSOLR 2.5 to fix change of paradigms in 5.0: [https://github.com/solariumphp/solarium/issues/320](https://github.com/solariumphp/solarium/issues/320)) * Thread Starter [ricardowordpress](https://wordpress.org/support/users/ricardowordpress/) * (@ricardowordpress) * [11 years ago](https://wordpress.org/support/topic/plugin-activation-error-with-solr-510/#post-6091858) * I’m using * solr-impl 5.1.0 1672403 – timpotter – 2015-04-09 10:37:54 lucene-spec 5.1.0 lucene-impl 5.1.0 1672403 – timpotter – 2015-04-09 10:30:49 * all_wpsolr-2-solr-5-x * solrconfig.xml 5.0 * Thread Starter [ricardowordpress](https://wordpress.org/support/users/ricardowordpress/) * (@ricardowordpress) * [11 years ago](https://wordpress.org/support/topic/plugin-activation-error-with-solr-510/#post-6091886) * Changing the Curl.php line 162 the ping worked in both environments 4.9 and 5.1 * if (!isset($options[‘headers’][‘Content-Type’])) { $options[‘headers’][‘Content- Type’] = ‘text/xml; charset=utf-8’; $options[‘headers’][‘Content-Type’] = ”; } Solarium library version: 3.2.0 – {“endpoint”:{“localhost”:{“host”:”127.0.0.1″,” port”:8984,”path”:”\/solr\/wordpress”}}} {} {} Ping query successful array(1){[“ status”]=> string(2) “OK” } * Now in the indexing process: Solr HTTP error: OK (415) {“responseHeader”:{“status”: 415,”QTime”:4},”error”:{“msg”:”Missing ContentType”,”code”:415}} * Plugin Author [WPSOLR](https://wordpress.org/support/users/wpsolr/) * (@wpsolr) * [11 years ago](https://wordpress.org/support/topic/plugin-activation-error-with-solr-510/#post-6091983) * You’d rather use Solr 4.9 or 5.0. Until Solarium solves those issues. * I suggest you open a ticket at Solarium’s github project. * Thread Starter [ricardowordpress](https://wordpress.org/support/users/ricardowordpress/) * (@ricardowordpress) * [11 years ago](https://wordpress.org/support/topic/plugin-activation-error-with-solr-510/#post-6091997) * Thanks, I’m just doing some tests. My installation is just for personal training. * If you instruct me what should I write into the ticket for Solarium, what part of the code I’m debugging? * Any simple example to follow and do some tests? Viewing 5 replies - 1 through 5 (of 5 total) The topic ‘Plugin Activation Error with solr 5.1.0’ is closed to new replies. * ![](https://s.w.org/plugins/geopattern-icon/wpsolr-search-engine_b2dbdc.svg) * [WPSOLR - Elasticsearch and Solr search](https://wordpress.org/plugins/wpsolr-search-engine/) * [Frequently Asked Questions](https://wordpress.org/plugins/wpsolr-search-engine/#faq) * [Support Threads](https://wordpress.org/support/plugin/wpsolr-search-engine/) * [Active Topics](https://wordpress.org/support/plugin/wpsolr-search-engine/active/) * [Unresolved Topics](https://wordpress.org/support/plugin/wpsolr-search-engine/unresolved/) * [Reviews](https://wordpress.org/support/plugin/wpsolr-search-engine/reviews/) * 5 replies * 2 participants * Last reply from: [ricardowordpress](https://wordpress.org/support/users/ricardowordpress/) * Last activity: [11 years ago](https://wordpress.org/support/topic/plugin-activation-error-with-solr-510/#post-6091997) * Status: resolved